Alfred a



106. COMPOSITIONS, comma OR PLASTICQ No Drawing.

To all whom it may concern:

Be it known that I, ALFRED A. BENNETT, a citizen of the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Cement Composition; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to the production of a hardened plastic composition which will have the necessary characteristics that it may be used for forming a hard durable structure that will sustain jarring and strains of an unusual character and at the same time is impermeable to water. The 1, composition produced by my invention by reason of its characteristics may be used to produce a flooring or covering compositlon that will have a long life notwithstanding the heavy wear and arduous jarring that a much and heavily used fioor may be subpected to. Also by reason of its impermeability and flexibility whereby it will withstand the cross strains it may be used in building of hulls of concrete ships.

I have discovered that a hardened cement composition formed of Portlan ce en and con lomerate co er stam san in proper propor 1ons wl pro uce, w en lald from about 1" to about 2" thick onconcrete or iron surfaces, a surface or a finishing layer 3 5 that will withstand long heavy wear without cracking and breaking or pulverizin The surfacing material thus forms a dura 1e finishing layer for road beds or flooring where there is heavy trucking and for iron stairs and hallways, such as in factories, public hulls, although it may be used for forming a finishing surface and structures wherever it may be found desirable. The composition is moreover of such a character that it may be subjected to free and frequent washmgs without deterioration. Also a fairly good polish may be produced on the surface when stoned down.

The cement finishing material is formed of Portland cement and an aggregate known as the conglomerate copper stamp sand obtained from the stamping mills where the conglomerate from copper mines is crushed PM CM UNITED STATES PATENT onnron;

ALFRED A. BENNETT, OF TOLEDO, OHIO, ASSIGNOR TO THE COPPERSTONE PRODUCTS COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

Specification of Letters Patent.

Application filed May 6, 1918. Serial No. 282,734.

buildings, etc., and for building of ship' CEMENT COMPOSITION.

Patented July 22, 1919.

to small size and then stamped, from which the copper is removed, leaving the conglomerate W The copper stamp san or tailings used is that or similar to that obtained from the Franklin Lfining Company at Point Mills, Michigan, in gradings of diiferent sizes. The analysis of the con lomerate is Silica K:

60. 84 Alumina 16. 29 Sesquioxid of iron 10. 04 Calcium oxid 3. 56 Magnesi 1. 61 Sodium and potassium oxid 6. 34 Loss on ignition 2. 05 Metallic copper 61 Also traces of sulfates and chlorids.

The gradings or sizes of the conglomerate used in the composition varies according to the results desired. The gradings will run from about i" insize to that that will pass through 200 wires to the inch. That remaining on 10 wires to the inch will be 21.40%; that remaining on 20 wires to the inch would be 28.10%; that remaining on 40 wires to the inch will be 28.40%; on 60 wires to the inch 7.60%; on 80, 5.00%; on 100, 4.70%; on 200, 2.80% through 200 wires to the inch, 2%, making a total of 100%.

In forming. the mixture, one part of Portland cement of a good grade is mixed with one to two parts of the aggregate and then with suflicient amount of water to render it plastic or to cause it to unify when set. This proportion, however, is varied according to the uses that the hardened composition 15 to be ut.

claim 1. A hardened composition formed of Portland cement and conglomerate copper stamp sand substantially as described.

2. A hardened composition formed of Portland cement and a conglomerate copper stamp sand having the analysis of silica 60%, alumina 16%, sesquioxid of iron 10%, calcium oxid 3.5%, magnesia 1.6%, sodium and potassium oxids 6%, metallic copper .6%.

3. A hardened composition formed of Portland cement and a conglomerate copper stamp sand having gradings running from about in size to that that will pass through 200 wires to the inch.

' ixaml 4. A hardened composition formed of wires to the inch, decreasing in amount from Portland cement and a conglomerate copper about 8% to about 2% and approximately 1} stamp sand having gradings running from of the total remaining amount remaining on 10 about 9;" in size to that that will pass 10, 20 and 40 to the inch, each. 5 through 200wires to the inch, the amount In testimony whereof, I have hereunto remaining on 60, 80, 100 and 200 wires to signed my name to this specification. the inch, and that will pass through 200 ALFRED A. BENNETT.

copies of this patent may be obtained for Me cents each, by addressing the "Commissioner oi Patents Washington, D. 0. 

